The V3 Mono has three op-amps. What does each one do? And if l want to get abetter sound, which one should l change?

Fosi Team

The op amp in position 1 converts the unbalanced signal from RCA into a balanced signal. The op amps in positions 2 and 3 are responsible for adjusting the tone. If you're looking to change only one op amp, it's recommended to replace the one in position 2. However, if you replace both op amps, the effect will be more noticeable. Positions 2 and 3 can be replaced with different chips. You can personally experiment with changing different op amps and their positions to experience the changes in sound.

If you have any questions or concerns, please don't hesitate to contact support@fosiaudio.com.

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